Click here to Skip to main content
11,812,712 members (72,104 online)
Rate this: bad
Please Sign up or sign in to vote.

In web programming, with the server variable REMOTE_ADDR, you can get the IP address of the user. For example in PHP:
The output on the page is the IP address of the user.
But how the server knows the IP address of the user?

Thanks in advance.
Posted 30-Dec-12 23:32pm

1 solution

Rate this: bad
Please Sign up or sign in to vote.

Solution 1

Certain information about the user is always passed to the webserver when a connection is established. IP Address is one of them.

unless you are in a LAN, its usually the ip-address of the router that gets displayed when visiting public web sites.

hope that helps.

ProgramFOX at 31-Dec-12 5:49am
Thank you!

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

  Print Answers RSS
0 Abhinav S 270
1 CHill60 180
2 KrunalRohit 154
3 Palash Mondal_ 145
4 Sergey Alexandrovich Kryukov 140
0 OriginalGriff 3,877
1 KrunalRohit 2,496
2 CPallini 2,240
3 Maciej Los 2,205
4 ppolymorphe 1,750

Advertise | Privacy | Mobile
Web02 | 2.8.151002.1 | Last Updated 31 Dec 2012
Copyright © CodeProject, 1999-2015
All Rights Reserved. Terms of Service
Layout: fixed | fluid

CodeProject, 503-250 Ferrand Drive Toronto Ontario, M3C 3G8 Canada +1 416-849-8900 x 100